Multiple colloids or hydrogels may each have a different chemical composition. A printer may extrude the colloids or hydrogels to form a physical object, in such a way that which hydrogel or colloid is depositedor the amount of each hydrogel or colloid that is depositedvaries as a function of spatial position. Thus, the material composition and material properties of the physical object may vary at different locations. In some cases, physical properties of the structure being fabricated, such as surface roughness and hydrophilicity, are directly related to relative proportions of the materials being deposited and their fabrication processes. In some cases, cells, microorganisms, nutrients or other bioactive materials are embedded in or introduced to the fabricated structure. In some cases, the different materials in different spatial positions in the fabricated object may have different abilities to immobilize, localize, and stabilize specific nutrients and chemical signals.

Adhesive formulations and methods for making adhesive formulations are provided. An adhesive formulation includes at least one oxazoline polymer and casein. Methods of making adhesive formulations include combining at least one oxazoline polymer and casein to form the adhesive formulation. Glue sticks made using these adhesive formulations and methods are also provided.

Adhesive formulations and methods for making adhesive formulations are provided. An adhesive formulation includes at least one oxazoline polymer and casein. Methods of making adhesive formulations include combining at least one oxazoline polymer and casein to form the adhesive formulation. Glue sticks made using these adhesive formulations and methods are also provided.

This document provides polymer compositions (e.g., biopolymer compositions) and coatings. For example, methods and materials related to polymer compositions (e.g., biopolymer compositions) and coatings as well as methods and materials for making and using such compositions (e.g., biopolymer compositions) and coatings are provided.

This document provides polymer compositions (e.g., biopolymer compositions) and coatings. For example, methods and materials related to polymer compositions (e.g., biopolymer compositions) and coatings as well as methods and materials for making and using such compositions (e.g., biopolymer compositions) and coatings are provided.

A biodegradable resin composition is usable for producing a molded article having high biodegradability particularly in the ocean. The biodegradable resin composition contains a biodegradable resin and one or more components selected from agarose, sodium alginate, casein, and keratin. The content of the biodegradable resin is 50% by weight or more.

A biodegradable resin composition is usable for producing a molded article having high biodegradability particularly in the ocean. The biodegradable resin composition contains a biodegradable resin and one or more components selected from agarose, sodium alginate, casein, and keratin. The content of the biodegradable resin is 50% by weight or more.

An unidirectional nanopore dehydration-based functional polymer membrane or hydrogel membrane, preparation method thereof and device thereof. Adding an aqueous polymer solution or a polymer mixture solution into a mold through a sampling hole on the top of a container with a nanoporous filter film as the bottom, after closing said sampling hole, the water molecules in the solution are dehydrated in one direction downward through the nanopores of the filter film, and obtain said polymer membrane or hydrogel membrane on the upper surface of the nanoporous filter film; it can also undergo in situ polymerization with pyrrole in an aqueous solution to obtain a conductive PM or PHM modified by polypyrrole. The invention adopts a UND-based mold, and green processing obtains a novel polymer material with an ordered molecular arrangement, which has the characteristics of flexibility, transparency, and robust mechanical properties. The polymeric material has broad applications.

The present invention provides a method for coating seeds with biological materials such as bacteria, fungi (e.g., yeasts and molds), parasites, recombinant vectors, and viruses. The method comprises (a) applying a moistening liquid to seeds to moisten seeds, wherein the moistening liquid comprises a moistening polymer, and (b) coating the moistened seeds with an effective amount of a dry composition, wherein the dry composition comprises biological materials, one or more disaccharides, one or more oligosaccharides, one or more polysaccharides, one or more carboxylic acid salts, and one or more hydrolyzed proteins. The coated seeds may have an initial water activity (Aw) below 0.4, and the microorganisms on the coated seeds have initial viability of at least 5 logs of colony forming units per gram of seeds (CFU/g seed). Also provided are coated seeds.

The present invention provides a method for coating seeds with biological materials such as bacteria, fungi (e.g., yeasts and molds), parasites, recombinant vectors, and viruses. The method comprises (a) applying a moistening liquid to seeds to moisten seeds, wherein the moistening liquid comprises a moistening polymer, and (b) coating the moistened seeds with an effective amount of a dry composition, wherein the dry composition comprises biological materials, one or more disaccharides, one or more oligosaccharides, one or more polysaccharides, one or more carboxylic acid salts, and one or more hydrolyzed proteins. The coated seeds may have an initial water activity (Aw) below 0.4, and the microorganisms on the coated seeds have initial viability of at least 5 logs of colony forming units per gram of seeds (CFU/g seed). Also provided are coated seeds.